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Araki M, Kurihara M, Kinoshita S, Awane R, Sato T, Ohkawa Y, Inoue YH. Anti-tumour effects of antimicrobial peptides, components of the innate immune system, against haematopoietic tumours in Drosophila mxc mutants. Dis Model Mech 2019; 12:dmm037721. [PMID: 31160313 PMCID: PMC6602314 DOI: 10.1242/dmm.037721] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 05/10/2019] [Indexed: 12/21/2022] Open
Abstract
The innate immune response is the first line of defence against microbial infections. In Drosophila, two major pathways of the innate immune system (the Toll- and Imd-mediated pathways) induce the synthesis of antimicrobial peptides (AMPs) within the fat body. Recently, it has been reported that certain cationic AMPs exhibit selective cytotoxicity against human cancer cells; however, little is known about their anti-tumour effects. Drosophila mxcmbn1 mutants exhibit malignant hyperplasia in a larval haematopoietic organ called the lymph gland (LG). Here, using RNA-seq analysis, we found many immunoresponsive genes, including those encoding AMPs, to be upregulated in these mutants. Downregulation of these pathways by either a Toll or imd mutation enhanced the tumour phenotype of the mxc mutants. Conversely, ectopic expression of each of five different AMPs in the fat body significantly suppressed the LG hyperplasia phenotype in the mutants. Thus, we propose that the Drosophila innate immune system can suppress the progression of haematopoietic tumours by inducing AMP gene expression. Overexpression of any one of the five AMPs studied resulted in enhanced apoptosis in mutant LGs, whereas no apoptotic signals were detected in controls. We observed that two AMPs, Drosomycin and Defensin, were taken up by circulating haemocyte-like cells, which were associated with the LG regions and showed reduced cell-to-cell adhesion in the mutants. By contrast, the AMP Diptericin was directly localised at the tumour site without intermediating haemocytes. These results suggest that AMPs have a specific cytotoxic effect that enhances apoptosis exclusively in the tumour cells.
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Affiliation(s)
- Mayo Araki
- Department of Insect Biomedical Research, Centre for Advanced Insect Research Promotion, Kyoto Institute of Technology, Kyoto 606-0962, Japan
| | - Massanori Kurihara
- Department of Insect Biomedical Research, Centre for Advanced Insect Research Promotion, Kyoto Institute of Technology, Kyoto 606-0962, Japan
| | - Suzuko Kinoshita
- Department of Insect Biomedical Research, Centre for Advanced Insect Research Promotion, Kyoto Institute of Technology, Kyoto 606-0962, Japan
| | - Rie Awane
- Department of Insect Biomedical Research, Centre for Advanced Insect Research Promotion, Kyoto Institute of Technology, Kyoto 606-0962, Japan
| | - Tetsuya Sato
- Medical Institute of Bioregulation, Kyushu University, Kyushu 812-0054, Japan
| | - Yasuyuki Ohkawa
- Medical Institute of Bioregulation, Kyushu University, Kyushu 812-0054, Japan
| | - Yoshihiro H Inoue
- Department of Insect Biomedical Research, Centre for Advanced Insect Research Promotion, Kyoto Institute of Technology, Kyoto 606-0962, Japan
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Moulick A, Heger Z, Milosavljevic V, Richtera L, Barroso-Flores J, Merlos Rodrigo MA, Buchtelova H, Podgajny R, Hynek D, Kopel P, Adam V. Real-Time Visualization of Cell Membrane Damage Using Gadolinium-Schiff Base Complex-Doped Quantum Dots. ACS Appl Mater Interfaces 2018; 10:35859-35868. [PMID: 30264566 DOI: 10.1021/acsami.8b15868] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Despite the importance of cell membranes for maintenance of integrity of cellular structures, there is still a lack of methods that allow simple real-time visualization of their damage. Herein, we describe gadolinium-Schiff base-doped quantum dots (GdQDs)-based probes for a fast facile spatial labeling of membrane injuries. We found that GdQDs preferentially interact through electron-rich and hydrophobic residues with a specific sequence motif of NHE-RF2 scaffold protein, exposed upon membrane damage. Such interaction results in a fast formation of intensively fluorescent droplets with a higher resolution and in a much shorter time compared to immunofluorescence using organic dye. GdQDs have high stability, brightness, and considerable cytocompatibility, which enable their use in long-term experiments in living cultures. To the best of our knowledge, this is the first report, demonstrating a method allowing real-time monitoring of membrane damage and recovery without any special requirements for instrumentation. Because of intensive brightness and simple signal pattern, GdQDs allow easy examination of interactions between cellular membranes and cell-penetrating peptides or cytostatic drugs. We anticipate that the simple and flexible method will also facilitate the studies dealing with host-pathogen interactions.
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Affiliation(s)
- Amitava Moulick
- Department of Chemistry and Biochemistry , Mendel University in Brno , Zemedelska 1 , CZ-613 00 Brno , Czech Republic
- Central European Institute of Technology , Brno University of Technology , Purkynova 123 , CZ-612 00 Brno , Czech Republic
| | - Zbynek Heger
- Department of Chemistry and Biochemistry , Mendel University in Brno , Zemedelska 1 , CZ-613 00 Brno , Czech Republic
- Central European Institute of Technology , Brno University of Technology , Purkynova 123 , CZ-612 00 Brno , Czech Republic
| | - Vedran Milosavljevic
- Department of Chemistry and Biochemistry , Mendel University in Brno , Zemedelska 1 , CZ-613 00 Brno , Czech Republic
| | - Lukas Richtera
- Department of Chemistry and Biochemistry , Mendel University in Brno , Zemedelska 1 , CZ-613 00 Brno , Czech Republic
- Central European Institute of Technology , Brno University of Technology , Purkynova 123 , CZ-612 00 Brno , Czech Republic
| | - Joaquin Barroso-Flores
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM , Carretera Toluca-Atlacomulco Km 14.5, Unidad San Cayetano , CP-50200 Toluca , Estado de México , Mexico
| | - Miguel Angel Merlos Rodrigo
- Department of Chemistry and Biochemistry , Mendel University in Brno , Zemedelska 1 , CZ-613 00 Brno , Czech Republic
- Central European Institute of Technology , Brno University of Technology , Purkynova 123 , CZ-612 00 Brno , Czech Republic
| | - Hana Buchtelova
- Department of Chemistry and Biochemistry , Mendel University in Brno , Zemedelska 1 , CZ-613 00 Brno , Czech Republic
| | - Robert Podgajny
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , PL 30-387 Krakow , Poland
| | - David Hynek
- Department of Chemistry and Biochemistry , Mendel University in Brno , Zemedelska 1 , CZ-613 00 Brno , Czech Republic
- Central European Institute of Technology , Brno University of Technology , Purkynova 123 , CZ-612 00 Brno , Czech Republic
| | - Pavel Kopel
- Department of Chemistry and Biochemistry , Mendel University in Brno , Zemedelska 1 , CZ-613 00 Brno , Czech Republic
- Central European Institute of Technology , Brno University of Technology , Purkynova 123 , CZ-612 00 Brno , Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry , Mendel University in Brno , Zemedelska 1 , CZ-613 00 Brno , Czech Republic
- Central European Institute of Technology , Brno University of Technology , Purkynova 123 , CZ-612 00 Brno , Czech Republic
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Jelinkova P, Splichal Z, Jimenez AMJ, Haddad Y, Mazumdar A, Sur VP, Milosavljevic V, Kopel P, Buchtelova H, Guran R, Zitka O, Richtera L, Hegerova D, Heger Z, Moulick A, Adam V. Novel vancomycin-peptide conjugate as potent antibacterial agent against vancomycin-resistant Staphylococcus aureus. Infect Drug Resist 2018; 11:1807-1817. [PMID: 30349337 PMCID: PMC6190637 DOI: 10.2147/idr.s160975] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Background Increase in vancomycin (Van)-resistant bacterial strains including vancomycin-resistant Staphylococcus aureus (VRSA) and lack of new effective antibiotics have become a formidable health problem. Materials and methods We designed a new conjugate composed of Van and a peptide Hecate (Hec; Van/Hec), and its potential antimicrobial activity was evaluated. Results Results from disk diffusion test, time-kill assay, determination of minimum inhibitory concentration (MIC), microscopy, and comet assay showed strong antimicrobial effects of Van/Hec against wild-type, methicillin-resistant Staphylococcus aureus (MRSA) and VRSA. Microscopy revealed that the exposure to Van/Hec results in disruption of bacterial cell integrity in all tested strains, which was not observed in case of Van or Hec alone. Conclusion Overall, we showed that the preparation of conjugates from antibiotics and biologically active peptides could help us to overcome the limitation of the use of antibiotic in the treatment of infections caused by multidrug-resistant bacteria.
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Affiliation(s)
- Pavlina Jelinkova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic,
| | - Zbynek Splichal
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Ana Maria Jimenez Jimenez
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Yazan Haddad
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Aninda Mazumdar
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Vishma Pratap Sur
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Vedran Milosavljevic
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Pavel Kopel
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Hana Buchtelova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic,
| | - Roman Guran
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Lukas Richtera
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Dagmar Hegerova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Amitava Moulick
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska, Brno, Czech Republic, .,Central European Institute of Technology, Brno University of Technology, Purkynova, Brno, Czech Republic,
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Chrusciel M, Doroszko M, Stelmaszewska J, Li X, Ziecik AJ, Coelingh-Bennink HJT, Huhtaniemi I, Rahman NA. Transgenic mice expressing inhibin α-subunit promoter (inhα)/Simian Virus 40 T-antigen (Tag) transgene as a model for the therapy of granulosa cell-derived ovarian cancer. Reprod Biol 2013; 14:25-31. [PMID: 24607252 DOI: 10.1016/j.repbio.2013.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 11/21/2013] [Accepted: 11/30/2013] [Indexed: 01/09/2023]
Abstract
Granulosa cell tumors are rare, 3-7.6% of primary ovarian tumors, although with poor prognosis as the tumor-related mortality rate is 37.3%, with 80% of deaths occurring on recurrence. We have created a transgenic (TG) murine model for gonadal somatic cell tumors by expressing the powerful viral oncogene, Simian Virus 40 T-antigen (Tag), under the regulation of murine inhibin α-subunit 6 kb promoter (inhα/Tag). Gonadotropin dependent ovarian granulosa cell tumors were formed in females by the age of 5-6 months, with a 100% penetrance. We have successfully used the inhα/Tag model to test different treatment strategies for ovarian tumors. With a gene therapy trial in inhα/Tag mice crossbred with inhα/HSV-TK (herpes simplex virus thymidine kinase) mice (double TG), we proved the principle that targeted expression of HSV-TK gene in gonadal somatic cell tumors enabled tumor ablation by anti-herpes treatment. When we aimed at targeted destruction of luteinizing hormone/chorionic gonadotropin receptor (LHCGR) expressing inhα/Tag tumor cells in vivo by a lytic peptide Hecate-CGβ conjugate, we could successfully kill the tumor cells, sparing the normal cells. We recently found high zona pellucida glycoprotein 3 (ZP3) expression in inhα/Tag granulosa cell tumors, as well as in human granulosa cell tumors. We tested the concept of treating the ovarian tumors of inhα/Tag mice by vaccination against the ectopically expressed ZP3. Immunotherapy with recombinant human (rh) ZP3 was highly successful with no objective side effects in inhα/Tag females, suggesting rhZP3 immunization as a novel strategy for the immunotherapy of ovarian granulosa cell tumors.
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Affiliation(s)
- Marcin Chrusciel
- Department of Physiology, Institute of Biomedicine, University of Turku, Finland; Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Milena Doroszko
- Department of Physiology, Institute of Biomedicine, University of Turku, Finland
| | - Joanna Stelmaszewska
- Department of Reproduction and Gynecological Endocrinology, Medical University of Bialystok, Poland
| | - Xiangdong Li
- State Key Laboratory for Agrobiotechnology, China Agriculture University, Beijing, China
| | - Adam J Ziecik
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | | | - Ilpo Huhtaniemi
- Department of Physiology, Institute of Biomedicine, University of Turku, Finland; Institute of Reproductive and Developmental Biology (IRDB), Imperial College London, London, UK
| | - Nafis A Rahman
- Department of Physiology, Institute of Biomedicine, University of Turku, Finland; Department of Reproduction and Gynecological Endocrinology, Medical University of Bialystok, Poland.
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